7B-75 Air Conditioning System: Automatic Type
DTC B1570: Engine Type Signal Failure
S6RW0C7224027
DTC Detecting Condition and Trouble Area
DTC Troubleshooting
DTC B1571: Combination Meter Spec Signal Failure
S6RW0C7224028
DTC Detecting Condition and Trouble Area
DTC Troubleshooting
DTC detecting condition
Trouble area
HVAC control module receives invalid data of engine type signal from BCM. • CAN communication circuit
• HVAC control module
• ECM
Step
Action
Yes
No
1
Was “Air Conditioning System Check” performed?
Go to Step 2.
Go to “Air Conditioning
System Check”.
2
Scan tool data check
1) Connect scan tool with ignition switch turned OFF
position.
2) Ignition switch turned ON and select “DATA LIST” mode.
3) Check “ENGINE TYPE” displayed on scan tool.
Is value of engine type signal within specified ranges
indicated in “Scan Tool Data”?
Substitute a known
good HVAC control
module and recheck.
Go to step 3.
3
Scan tool data check
1) Check “ENGINE TYPE” displayed on scan tool.
Is “CAN Err” displayed on scan tool data?
Check CAN
communication circuit
referring to
“Troubleshooting for
CAN-DTC in Section
1A”.
Substitute a known
good ECM and recheck.
DTC detecting condition
Trouble area
HVAC control module receives invalid data of Combination meter spec signal
from BCM.
• CAN communication circuit
• Combination meter
• HVAC control module
Step
Action
Yes
No
1
Was “Air Conditioning System Check” performed?
Go to Step 2.
Go to “Air Conditioning
System Check”.
2
Scan tool data check
1) Connect scan tool with ignition switch turned OFF
position.
2) Ignition switch turned ON and select “DATA LIST” mode.
3) Check “METER SPEC” displayed on scan tool.
Is value of combination meter spec signal within specified
ranges indicated in “Scan Tool Data”?
Substitute a known
good HVAC control
module and recheck.
Go to step 3.
3
Scan tool data check
1) Check “METER SPEC” displayed on scan tool.
Is “CAN Err” displayed on scan tool data?
Check CAN
communication circuit
referring to
“Troubleshooting for
CAN-DTC in Section
1A”.
Substitute a known
good combination meter
and recheck.
Summary of Contents for 2006 SX4
Page 2: ......
Page 6: ......
Page 22: ...00 15 Precautions...
Page 38: ...0B 7 Maintenance and Lubrication...
Page 378: ...1K 6 Exhaust System...
Page 848: ...6C 46 Power Assisted Steering System...
Page 954: ...7B 89 Air Conditioning System Automatic Type...
Page 1086: ...8B 121 Air Bag System...
Page 1381: ...Paint Coatings 9L 7 I5RW0C9C0005 01 A Apply sealant 1 Hole...
Page 1382: ...9L 8 Paint Coatings I5RW0C9C0006 01 A Apply sealant covering flange end...
Page 1476: ...Prepared by 1st Ed Feb 2007...